Hinge



No. 6l4,098. Patented Nov. 15, I898.

v M. GALLAGHER.

HI N G E.

(Application filed. Oct. 18, 1897.)

(No Model.)

WITNESSES:

UNITED STATES PATENT OFFICE.

MARTIN GALLAGHER, OF PHILADELPHIA, PENNSYLVANIA.

HINGE-.L

SPECIFICATION forming part of Letters Patent No. 614,098, dated November15', 1898-.

Application filed October 13, 1897. Serial No. 655,648- (No model.)

To (ZZZ whom it mag concern.- I

Be it known that I, MARTIN GALLAGHER, a citizen of the United States,residing in the city and county of Philadelphia, State ofPennsylvania,have invented a certain new and useful Improvement in Hinges, of whichthe following is a specification.

My invention relates more particularly to a hinge in which two platesare movably affixed to and revolve one upon the other when a door orshutter to which said hinge may be attached is opened or closed. i

It relates especially to and is an improvement upon the hinge inventedby me and for which I filed an application in the United States PatentOffice on April 23, 1897, Serial No. 633,440, allowed September 13,1897.

The object of the present improvement is to render more efficient andeasy the operation of said hinge bythe application of ballbearingsthereto; and it consists of novel de-, tails of construction, all aswill be hereinafter fully set forth, and particularly pointed out in theclaim. 7

Figure 1 represents a plan view of a hinge embodying my improvement.Fig. 2 represents a side elevation thereof, showing it as applied indouble arrangement to an extra heavy door. Fig. 3 represents aperspective view of the portion thereof that .is affixed to thedoor-frame, and Fig.4 represents a perspective view of that portion thatis affixed to the door.

Similar letters of reference indicate corresponding parts in the severalviews.

My improved hinge consists of horizontallydisposed plates 0, (used ineither single or double arrangement) rigidly secured to thevertically-disposed supporting-plate C or equivalent devices, said platebeing secured to the door-frame A by any suitable means, that shownbeing the screws 0. In case the hinge is used in its single constructionthe horizontally-disposed plate 0 may be secured to the door-frame by ascrew extension, prong, or such means, as well as by the plate 0 Ddesignates a bracket or flap adapted to be secured to the sides of thedoor B, to which bracket are attached flat horizontallydisposed platesF, which are pivotally affixed to the horizontally-disposed plates 0 bymeans of the pivot-pin o and the openings f and c Thevertically-disposed plate 0 is usually.

concave, and the door-frame made of similar form' to receive it, asshown, in order to allow,

of the free movement of the door-plates F when the door is opened orclosed; 1

In using the hinge it is first attached to the door-frame. Mortises orslots which are the' width or depthof the combined thickness of thethree or two plates used are formed in the edge of the door, extendingparallel to the top and bottom and at right angles to the edges thereof,into which mortises the horizontallydisposed'plates are slipped and thesame se-' cured to the door by means of the bracket D and its screws D.The hinge can also be se cured to the upper and lower edges of said doorwithout in the least affecting its practicability. v

The above forms the subject-matter of my former application referred to.

My present improvement consists in forming channels, annular grooves, orballways 0 upon the upper and lower faces of plates 0, as well as uponthe inner faces of the plates F, as designated by F, to correspond withgrooves c, and placing in said grooves balls or spheres F Figs. 1 and 2,upon which spheres plates F revolve or turn, it being obvious that allfriction is thus reduced to a minimum and the swinging of the door orshutter or other article to which the hinge is, attached is renderedabsolutely free and unhampered and the strength or exertion to beapplied in opening or closing the door is of the smallest. The saidspheres not only operate as perfect ball-bearings or antifriction means,but they also act as eflicient and perfect pivots, holding the fixed andmovable parts of the hinge assembled and in juxtaposition, enabling thehinge to be used without the ordinary pivotpin as efficiently as withone and thereby performing a double function at one and the same time,which are the essential and novel results of my improvement.

In extra heavy doors the hinge may be used in double arrangement, asshown in Figs. 2, 3, and 4, and provided with and connected by suitablescrollwork, which imparts to the same the appearance of being one hinge.

Any suitable material can, of course,.be

used in the construction of my improved annular grooves or ballways intheir upper and under surfaces, of a bracket adapted to be secured tothe sides of a door, flat horizontally-disposed plates secured in thebracket, adapted to be seated in a mortise in the edge of the door, andspaced to embrace the horizontal plates, respectively, of the door-frameplate and having annular grooves or ballways contiguous to the groovesor hallways of the plate embraced thereby, and bearing-balls in saidgrooves or ways whereby the door member of the hinge is antifrictionallyand pivotally connected to the door-frame member, substantially asdescribed.

MARTIN GALLAGHER. Witnesses:

ANTHONY DE SILVER, DAVID S, WILLIAMs.

